the capsules contain the undeclared substances sibutramine and phenolphthalein.

consumers are advised that sibutramine is a prescription-only medicine (which was the active ingredient in Reductil). It was withdrawn in October 2010 after a study showed an increased risk of major cardiac events.

phenolphthalein is a prescription-only substance previously marketed as an oral laxative, withdrawn from sale from many markets in the late 1990’s due to concerns over its carcinogenicity with long term use.